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Item type:Документ, CT-based study of anatomical variations in chronic rhinosinusitis patients(2025) Yurevych, N.; Varzhapetian, S.; Buniatian, Kh.; Khotimska, Yu.; Sukhina, I.; Kuzmenko, N.; Trach, O.; Alekseeva, V.Introduction: Chronic rhinosinusitis (CRS) is frequently associated with anatomical variations that may predispose individuals to impaired sinus drainage and mucosal inflammation. Computed tomography (CT) of the paranasal sinuses provides an essential diagnostic tool for evaluating these variations. Objective: To assess the prevalence and types of anatomical variations in patients with CRS using CT Data. Material and Methods: A retrospective cross-sectional study was conducted on 75 patients diagnosed with CRS. CT scans were evaluated for anatomical variations including concha bullosa, deviated nasal septum, agger nasi cells, Haller cells, Onodi cells, uncinate process variations, and paradoxical middle turbinate. Results: The most frequent variation observed was concha bullosa (64%), followed by deviated nasal septum (61.3%), agger nasi cells (49.3%), and Haller cells (32%). Onodi cells were observed in 21.3% of patients, uncinate process variations in 17.3%, and paradoxical middle turbinate in 12%. Conclusion: Anatomical variations are common in CRS patients and can play a critical role in the pathophysiology of the disease. CT imaging is vital in identifying these variations, which can guide appropriate surgical planning.Item type:Документ, Anatomical variability of the alveolar process of the maxilla based on multislice computed tomography data(2024) Shiyan, D.; Kysylenko, K.; Trach, O.; Yurevych, N.; Lupyr, M.; Alekseeva, V.Modern research methods, widely implemented in routine medical practice, open new horizons for the study of anatomical structures. The maxilla is one of the regions of the human skull that shows significant variability with age and gender. This is due to the peculiarities of tooth eruption and age-related changes in the periodontium and adjacent structures, which undoubtedly affect the structure of the alveolar process, sometimes drastically altering it over time.